STP® 66255 - Engine Stop Leak

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Universal Fit
Fitment Notes:
  • It is recommended to check your vehicle owner's manual. Do not mix with other fluids.
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Product Details

Engine Stop Leak by STP®. Is your engine leaking oil? Have your seals or gaskets shrunk or cracked? This great treatment is right what you need to stop minor oil leaks! It also rejuvenates seals and gaskets and helps to fortify oil with a viscosity enhancer.



Volume: 14.5 oz


  • Helps protect against engine wear
  • Provides a thicker cushion between moving engine parts

Worn parts and gaps between the cylinder walls, piston rings and valve guide seals stop the engine from running as it should. Additives are essential to the long life of the vehicle. Without them, oil can lose film strength and work less efficiently, bringing with it a number of problems. STP oil additives can help reduce friction, wear, and even stop minor engine leaks. They use an advanced formula to ensure reliable engine operation: they fight metal-to-metal friction by building a thicker cushion between moving engine parts and assist in maintaining lubrication throughout the lifespan of the oil.

STP products give you the 'power' to get maximum performance from your vehicle. No matter what type of engine you have – whether it's gas or diesel – there is a range of premium quality products that will improve and further maintain the performance of your vehicle. All STP products have been specifically formulated, then extensively tested and evaluated to demonstrate their ability to help keep your vehicle running stronger and smoother mile after mile. STP products are also safe for use in any vehicle, new or old.

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Vehicle Fitment

Low Prices Price match guarantee
Guaranteed Fitment Always the correct part
In-House Experts We know our products
Easy Returns Quick & Hassle Free

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